DE3569595D1 - Conical cutters for drill bits and processes to produce same - Google Patents

Conical cutters for drill bits and processes to produce same

Info

Publication number
DE3569595D1
DE3569595D1 DE8585305165T DE3569595T DE3569595D1 DE 3569595 D1 DE3569595 D1 DE 3569595D1 DE 8585305165 T DE8585305165 T DE 8585305165T DE 3569595 T DE3569595 T DE 3569595T DE 3569595 D1 DE3569595 D1 DE 3569595D1
Authority
DE
Germany
Prior art keywords
core
metallic
axis
inserts
interior
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8585305165T
Other languages
German (de)
Inventor
Gunes M Ecer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CERACON Inc SACRAMENTO CALIF US
Original Assignee
CDP Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CDP Ltd filed Critical CDP Ltd
Application granted granted Critical
Publication of DE3569595D1 publication Critical patent/DE3569595D1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Earth Drilling (AREA)
  • Powder Metallurgy (AREA)
  • Drilling Tools (AREA)

Abstract

A roller bit cutter comprises:a) a tough, metallic generally conical and fracture resistant core having a hollow interior, the core defining an axis,b) an annular metallic radial bearing layer carried by said core at the interior thereof to support the core for rotation, said bearing layer extending about said axis,c) an impact and wear resistant metallic inner layer on the core at the interior thereof, to provide an axial thrust bearing, andd) hard metallic inserts having anchor portions carried by the core and partly embedded therein, the inserts protruding outwardly at the exterior of the core to define cutters, at least some of the inserts spaced about said axis,e) and a wear resistant outer metallic layer on the exterior of said core.
DE8585305165T 1984-07-23 1985-07-19 Conical cutters for drill bits and processes to produce same Expired DE3569595D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/633,635 US4597456A (en) 1984-07-23 1984-07-23 Conical cutters for drill bits, and processes to produce same

Publications (1)

Publication Number Publication Date
DE3569595D1 true DE3569595D1 (en) 1989-05-24

Family

ID=24540463

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585305165T Expired DE3569595D1 (en) 1984-07-23 1985-07-19 Conical cutters for drill bits and processes to produce same

Country Status (8)

Country Link
US (1) US4597456A (en)
EP (1) EP0169718B1 (en)
JP (1) JPS6160988A (en)
AT (1) ATE42376T1 (en)
CA (1) CA1238630A (en)
DE (1) DE3569595D1 (en)
MX (1) MX166060B (en)
SG (1) SG106391G (en)

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US20060237236A1 (en) * 2005-04-26 2006-10-26 Harold Sreshta Composite structure having a non-planar interface and method of making same
US8637127B2 (en) 2005-06-27 2014-01-28 Kennametal Inc. Composite article with coolant channels and tool fabrication method
US7997359B2 (en) * 2005-09-09 2011-08-16 Baker Hughes Incorporated Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials
US8002052B2 (en) 2005-09-09 2011-08-23 Baker Hughes Incorporated Particle-matrix composite drill bits with hardfacing
US7597159B2 (en) 2005-09-09 2009-10-06 Baker Hughes Incorporated Drill bits and drilling tools including abrasive wear-resistant materials
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US7343990B2 (en) * 2006-06-08 2008-03-18 Baker Hughes Incorporated Rotary rock bit with hardfacing to reduce cone erosion
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US9739097B2 (en) 2011-04-26 2017-08-22 Smith International, Inc. Polycrystalline diamond compact cutters with conic shaped end
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Also Published As

Publication number Publication date
CA1238630A (en) 1988-06-28
JPS6160988A (en) 1986-03-28
SG106391G (en) 1992-02-14
EP0169718A2 (en) 1986-01-29
MX166060B (en) 1992-12-16
ATE42376T1 (en) 1989-05-15
JPH0228676B2 (en) 1990-06-26
EP0169718B1 (en) 1989-04-19
EP0169718A3 (en) 1987-01-21
US4597456A (en) 1986-07-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CERACON, INC., SACRAMENTO, CALIF., US

8339 Ceased/non-payment of the annual fee